New to Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 194th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the SUM, VLOOKUP and ROUND functions to create a gradebook based on percentage scores that will calculate grade for you automatically. See also how the VLOOKUP and the percentage format can deliver the wrong grade when you dont use the ...
In this video tutorial, viewers learn how to properly shoot and sight in a compound bow. It is recommended that users use a release. Your body should be perpendicular to the target. Hold the bow vertically, and hold it with a relaxed and secure grip. When you are ready to begin shooting, learn a technique that will help you relax and steady the bow. When you draw the bow string back, you should be looking through the peephole on the bow string and where the target and pins come into view. Thi...
In this Home & Garden video tutorial you will learn how to test lawn irrigation systems. John White presents this video. This is done by a simple can test. Take a few cans of the same size with vertical walls and flat bottom. Place them around the sprinkler head at different distances and make sure they are horizontal. This will show whether the sprinkler is spreading water evenly. Then you can time it and measure the amount of water. This way in future, you will know how long to run the syst...
Watch Southwest Lawn and Garden's John white and Dr. Bernd Leinauer Discuss the importance of Bermuda grass lawn fertilization and the correct techniques involved. You'll learn how to interpret the meaning behind the fertilizer label, and why a complete fertilizer, including nitrogen, phosphorus and Potassium. Along with how to calculate much fertilizer to use per square foot, You'll learn how each important nutrient helps your lawn, and why having the correct balance is so important. Most im...
The guy first gives the definition of differential equations. He explains that a differential equation is an equation that contains the derivatives of an unknown function. He then gives some examples of differential equation and explains what the equation's order means. After that he gives an example on how to solve a simple equation. He calculates it and gives examples of graphs. Then he explains what a general solution is and how to narrow down the number of solutions using data from the pr...
New to Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. With this video tutorial from ExcelIsFun, the 329th installment in their series of digital spreadsheet video tutorials, you'll learn how to create a frequency table. Then see how to calculate the midpoint of each category and make a frequency polygon with two or more lines (two or more data sets).
New to Excel? Looking for a tip? How about a tip so mind-blowingly advanced as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 480th installment in their series of digital spreadsheet magic tricks, you'll learn how to calculate a percentage of total from a database data set when the variable of interest is text (word). This is accomplished with recourse to the COUNTIF, SUM & COUNTA functions.
New to Excel? Looking for a tip? How about a tip so mind-blowingly advanced as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 533rd installment in their series of digital spreadsheet magic tricks, you'll learn how to create a formula to calculate the difference between start date/time & end date/time excluding holidays and weekends. This is accomplished with recourse to Excel's NETWORKINGDAYS and MOD functions.
Open Microsoft Office Excel. Across the top notice letters (columns), along the sides are numbers (rows). The columns and rows can be extended by highlighting sections and right clicking and choosing the high of the row. You can also select to add a border, and change the orientation of your cells.
In this video the tutor shows how to calculate the area of a rhombus. He gives the formula for the area of a rhombus as area a = ( D * d ) / 2 where D is the length of the longer diagonal and d is the length of the shorter diagonal. He shows how to solve such problems by taking an example of rhombus with lengths of longer and shorted diagonal and computes its area by substituting the values in the area formula. This video shows how to compute the area of a rhombus when the lengths of its long...
An educational video from free math tutoring that shows an easy way to calculate differences of temperature. Many times people commit simple mistakes in subtracting temperatures that lead to illogical results. This video explains a very common pitfall and at the same time, clears up an important concept in temperature subtraction.
In this video, Tom Leese, Director of Instruction at Angel Park Golf Club, gives pointers for your pre-shot routine in golf. Important in the transition from the practice range to real games, your pre-shot routine helps you get situated and ready to play real competitive golf. Tom explains, first, how to set your lines, taking a straight and purposeful line down course where you want your ball to go, and remaining fixed on it, as you approach your tee. Then, when positioned at your ball, he t...
This video is about how to learn how to calculate what key to play a piece of music in. The instructor tells you that you need to know two things: how to read music notes and how understand the Circle of Fifths. Putting together these two layers of knowledge you can figure out what possible keys the music can be in. You can normally narrow down your possibility to two choices. Normally, the key to choose correlates with the last note in the music.
In this video the instructor talks about compound and continuous interest formula calculations. You need to understand the concepts of simple and compound interest. Only then you can understand what the bank is doing to your money which are in your bank account. Simple interest is a method where when returning a borrowed sum to some one you pay additional price for using the money all this time. Compound interest is a similar concept where you pay interest on the original sum borrowed, and al...
In this tutorial the instructor shows a method to compute the interior angle sum of a polygon. He gives us the formula for the interior angle sum of a convex polygon as (n-2) * 180 where n is the number of sides of the polygon. He goes and take a 6 sided polygon as an example and does the math by substituting the value of 'n' in the equation and arrives at the result. This video clearly gives the formula and demonstrates with an example of how to calculate the sum of interior angles of a poly...
From the people who brought you the Dummies instructional book series, brings you the same non-intimidating guides in video form. This is Mathematics for Dummies. Just watch this video tutorial to learn how to find the volume of a solid with a circular cross-section, For Dummies.
Hip flexors are important muscles to target when weight training to build functional strength in the legs. Learn how to do hip flexor exercises in this strength training video. Take action: knees to chest exercise targets core, hold weight between feet, raise knees as high as you can, start in push up position and bring alternate knees to elbows, and work for quick reps and endurance. Tom Clifford, the instructor in this how-to video, has a degree in physical education, fitness and health fro...
The SOFLAM is a gadget that you can use in Battlefield 3. It is a team based gadget that you deploy and use to laser target. It is different than a mortar and can be a little hard to use. This guide will show you how to get the most out of a SOFLAM so that you can tear up the other team.
This Giant Bomb walkthrough will take you through the Iron Golem boss fight in Dark Souls. The Iron Golem is the last boss in Sen's Fortress and has a long reach. You will need to target the back of its legs in order to defeat it.
Pretty Little Liars is the newest part of the increasingly puzzling lineup of shows on ABC Family that seem to be creating a new demographic to target as they go along. The girls on it are very pretty, and this video will show you how to create a makeup look inspired by the show's star Alison DiLaurentis.
THis video from accredited 3D art instructor Andrew Klein covers how to create symmetrical and asymmetrical blendshapes using the 3D sculpting program Zbrush. This is a fairly complex process, utilizing transpose masking features, move brush, smart resym, and morph target tools to accomplish its goal of creating a really cool animated 3D mask.
In this video tutorial you are told how to use the Wagon Wheel Cue Ball Control training method. This is called Wagon Wheel because each target ball is aligned to RESEMBEL the spokes of a wagon wheel. Set your cue ball and your object ball in the same position each time. The objective is getting the cue ball to one balls width of the target ball. Using THE FOLLOWING cue ball, direction and speed. By using a piece of chalk the instructor helps line up the balls. By using either a quarter stick...
Component 1. Frame And Posture. The benefits of dance shoes never outweigh the benefits of proper spin technique. Your body should be straight lower abs and stomach should be tight. Your arms are in proper position. If you lift your hand it should be in 90 degree angle.
In this Photoshop CS3 tutorial you will learn how to use the knockout feature. This advanced masking technique allows you to move a targeted layer around, revealing the layer underneath. This video will show you how to reveal a creepy skeleton under a monster werewolf right in Photoshop. This classic technique lives again! Learn the subtle qualities of the Deep, and Shallow, Knockout feature in Photoshop.
Katherine and Kimberly Corp show you how to do a ten-minute (1o min) pilates arm workout using stretch bands. This workout targets every major muscle group in the arms and helps maintain alignment and ab strength.
Determining the antivirus and firewall software installed on a Windows computer is crucial to an attacker preparing to create a targeted stager or payload. With covert deep packet inspection, that information is easily identified.
So you want to know what that person who is always on their phone is up to? If you're on the same Wi-Fi network, it's as simple as opening Wireshark and configuring a few settings. We'll use the tool to decrypt WPA2 network traffic so we can spy on which applications a phone is running in real time.
Web application firewalls are one of the strongest defenses a web app has, but they can be vulnerable if the firewall version used is known to an attacker. Understanding which firewall a target is using can be the first step to a hacker discovering how to get past it — and what defenses are in place on a target. And the tools Wafw00f and Nmap make fingerprinting firewalls easy.
In the world of technology, there's often a trade-off between convenience and security. The Java Remote Method Invocation is a system where that trade-off is all too real. The ability for a program written in Java to communicate with another program remotely can greatly extend the usability of an app, but it can also open up critical vulnerabilities that allow it to be compromised by an attacker.
It's not uncommon for hackers to attempt to move laterally between devices in proximity of a compromised device to maintain a prolonged presence in the network. Malware utilizing USB flash sticks to self-replicate and compromise air-gapped machines isn't a new concept.
If you need to hack an Android device, try a remote administration tool. Known more familiarly as a RAT, there are open-source RATs that are barebones and exorbitantly priced RATs that are more polished. There are also low-cost and polished RATs that aren't intended to be RATs at all, such as Cerberus, an anti-theft solution available right on Google Play.
Open-source data scraping is an essential reconnaissance tool for government agencies and hackers alike, with big data turning our digital fingerprints into giant neon signs. The problem is no longer whether the right data exists, it's filtering it down to the exact answer you want. TheHarvester is a Python email scraper which does just that by searching open-source data for target email addresses.
A router is the core of anyone's internet experience, but most people don't spend much time setting up this critical piece of hardware. Old firmware, default passwords, and other configuration issues continue to haunt many organizations. Exploiting the poor, neglected computer inside these routers has become so popular and easy that automated tools have been created to make the process a breeze.
I mentioned in 2015 I wanted to start a 'DoXing' series, and since I havent seen this on Null Byte, I am now going to introduce this to the community.
Welcome back, my greenhorn hackers! Many new hackers come from a Windows background, but seldom, if ever, use its built-in command-line tools. As a hacker, you will often be forced to control the target system using just Windows commands and no GUI.
Since The Guardian published leaked documents exposing the depth of the NSA's spying powers, many people who've never put much effort into protecting their privacy are finally starting to pay attention. Evidence of public opinion concerning PRISM can be seen from the rise in traffic for pro-privacy sites like DuckDuckGo to the petitions demanding that the program be scaled back or done away with altogether. Some would argue that you waive your right to privacy by signing the terms of agreemen...
Want to be able to hack into a computer remotely? This method takes a little extra time and cunning to set up, since you will need to first install the ShowMyPc program on your target computer. Once you have installed this program, however, you will be able to go to the website ShowMyPc.com and be able to see what your target has been up to. Even better, you can use that computer and the files on it as if it were your own desktop!
Perhaps not as easy as using a calculator, but easy nevertheless! With mathematics, as with anything else, not everyone progresses at the same rate. Happily, in the age of Internet video tutorials, this isn't a problem. Those who progress quickly can go beyond what's being taught them and those who are struggling likewise have all the time in the world to catch up. With this free video math lesson, you'll learn how to find square roots by hand.
Want to find the value of a t-statistic confidence interval for a small sample? This clip's your ticket. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials.
Need a quick primer on how to solve type-1 error problem in stats? Let this video be your guide. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials.
